Ink-fountain for printing-presses



J. F. PARHAM.

INK FOUNTAIN FOR PRINTING PRESSES.

APPLICATION FILED MAR. 3, 1919. RENEWED FEB. 10, 1920.

'1 34,469. Patented Mar. 23, 1920.

WITNESSES Invli-molz' it ll Wlhtilf fhtlflflf llf OFFICE.

JAMES Flthlhlitf PARK-1AM, OIF "WAEI-IVILLE, TENNESSEE.

INLttI-FUUN'LEAIN FOR PRINTING-PRESSES.

iii) of! tU/tUUL it may concern.-

Be it known that l, denies FRANK PAR- inirt, e citizen of the United fvtates, and a. resident of Nashville, in the county of lfhrvidson and State of Tennessee, have invented certain new and useful improvements in ink-Fountains for lrinting-Presses, of which the following is e specification.

llsl y present invention relates generally to ink fountains, and more purticulurly to inlr fountains for job printing presses, lny object being the provision of an inking attachment by means of which the actual printing may be improved and much time saved in opera tion.

A further and more specific object is the provision of an ink fountain in which the ink receptacle may be readily removed for cleaning and repair and a. further object is the provision of means whereby the ink receptacle may be locked in positive adjustwent with respect to the inking roller so its to maintain an even color in the printing throughout an entire job.

it still further object is the provision of an arrangement which may be secured in inoperative position when the fountain is not in use and a construction by means of which streaking of forms may be readily overcome and entirely eliminated.

Uther objects, relating for the most part to the details of construction will more plainly appear in the following description, reference being made to the accompanying drawings, forming a port of this specificetion, and in which:

Figure 1 is a, side elevation of my improved uttachnlent,

Fig. E2 is a. top plan view thereof,

"fig. is an end View, looking at the distributing roller and its frame,

Fig. is a top-plan, side and end view of the ink receptacle, and

Fig. 5 is a detail plan view of the adjust ing screw removed.

Referring now to these figures, my improved attachment is connected to the frame of a platen printing press through the use of a. bracket 14, one end of which, as seen in Fig. 2, is slotted for adjustable engagement by a connecting belt which secures it to the machine, and the other of which is connected by a. bolt 15 to the base of the fountain. fra 1, the rear wall of which has c. bearing 3 for the odjustin screw 31, the latter being engaged by e liiclt nut and handle 4.- the turn- Speciucation of Letters Patent.

Patented Mar. 23, 1920. Renewed February re, 1920. Serial No. 357,747.

ing of which. against the rear end of the frame 1 securely locks the adjusting screw in ad usted position.

The :lorswu'd portion of the frame 1 has bearings for the shaft 13 of the inking roller 10, upon which is secured e ratchet wheel 9, and to one end of which is affixed :1 screw Z on which the forward end of u retchet lever is jeurnaled, this lever carrying o dog in engagement with the ratchet base of the wheel 9.

The ends of the shaft 13 also extend through the side portions of a. frame ("1, one side portion of which is extended reerwurdly as bent seen in Fig. 2 and secured by screws 11, to the ratchet lever 28 so that the entire frame 6 tilts on the shaft 13 in operation and thus the ratchet wheel given it stop bystep rotative movement, turning the inking roller 10. l

Within the sides of the frame 1 and seated upon the base thereof the fountain or ink receptacle 2, the forw'erd portion of the sides of which have concave recesses 37 which abut the annular shoulders 23 at the opposite ends of the inking roller 10. This fountain or ink receptacle 2 also has its base for wardly and downwardly inclined and terminoting in knife edge 38 adjacent to the periphery of the inking roller 10, and is provided with a rear wall. 32 having a. vertical slot 36 which receives the forward re duced extension of the adjusting screw 31, the threaded portion of which extends through the bearing 3. This adjusting screw 31 has at its inner end a. head 35 and thus with the reduced portion 34 thereof in the slot 36 of the rear wall of the fountain, when the letter is disposed in the operative position shown in Figs. 1 and 2, rotation of the adjusting screw serves to shift the ink receptacle or fountain forwardly and rearwerdly dependent upon the direction of such rotation.

The side walls of the frame 1 have clips 2-? SEBCl'llQCl thereto by screws as clearly seen in Figs. 1. end 2 and by virtue of the particular connection of the fountain. with the adjust ing screw, well us the character of the clips :27, it is simply necessary to loosen these clips in order to withdraw the fountain or ink receptacle for cleaning.

' Forwardly beyond the inking roller 10, the frame 6 which, as before stated, is secured to the ratchet lever 28 and tilts upon the shaft 13 of the inking roller, is provided with a cross bar 29 and forward extensions, to the latter of which a depending frame of inverted U-shape is pivoted by pivot screws 18 and normally held in vertical position by means of a spring 21. This frame 17 supports at its lower portion a journal or shaft 26 of a distributing roller 22 which, upon rocking movement of the frame 17 upon the pivot screws 18, comes into engagement with the inking roller 10 as presently described. The frame 17 may no mally be held in the vertical position shown in Fig. 1 and secured against movement by clamp screw 19, when the fountain is not in use, and to the lower portion of the said frame 17 and extending rearwardly and laterally therefrom, is an angular bracket 23, connected by screws 25 extending through its slots 2-1 and provided with an angular extremity 10 into engagement with which the form roller saddle of the printing press comes during the operation of the latter, so as to shift the frame 17 and move the distributing roller 22 into engagement with the inking roller 10.

The spring 21 is secured to the frame (3 at its upper end by a screw 20 and engages the bracket 23 at its lower end so that after each movement of the distributing roller upwardly and rearwardly against the inking roller 10, the spring 1 will draw the distributing roller frame 17 downwardly again upon the next movement of the form rollers over the impression form.

The inking device is of course mounted adjacent to the inking disk of the press as usual, so that in the downward movement of the distributing roller 22 to the position shown in Fig. 1, it comes into engagement with the surface of the said disk so as to transfer thereto the ink it has received from the surface of the inking roller 10.

To the rear end of the ratchet lever 28, connecting rod or arm 8 is loosely connected by a pivot bolt 7, the rod or arm 8 leading from a suitable moving part of the press as usual, so that during the operation of the press the inking roller 10 is, through the connections above stated, given a step-by-step rotation. It is obvious that in addition to the advantages above set forth to the ready removal of the ink receptacle or fountain 2, my improved construction provides for readily locking the ink receptacle in adjusted relation with respect to the inking roller 10 so as to avoid all danger of displacement, and in this way assure a uniform color throughout the printing operation, and it is further obvious that my improved construction has the advantages of simplicity, reduced cost and increased strength over constructions for a similar purpose now in use.

By removing the spring and the part 23, and by tightening the screws 18 and 19, the distributing roller may be used with an up and down movement, the form roller 1((F(,l\' ing the ink from the fountain roller 10 and placing the ink on the disk where it is di tributed evenly by the distributing roller.

I claim:

1. An inking attachment of the char-infer described including a main frame, a shall journaled in the said frame at one end, an inking roller on the said .--llilfl'.. a ratchet wheel also secured upon the shaft, :1 tiltable frame journaled on the end ha ft and having actuating connection. and a portion projecting beyond the inking roller, a dog ixoving with the said tillnble frame and engaging the ratchet wheel, a spring coir trolled frame pivotall connected to and depending from the projecting portion ol said tiltable frame, a distributing roller journaled in the latter frame, and a bracket secured to the said distributing r ll r fran o and projecting laterally therefrom, for the purpose described.

2. An inking attachment of the character described including a main frame having side walls provided with bearings at one end, a shaft journaled in the said l'icarings. an. inking roller on the said shaft bctm-cn the side walls of the frame, a ratchet wheel also secured upon the shaft at one side of the 'rame, tiltable frame journalcd interme diate the ends of its side portions, upon the ends of the said shaft, said tiltablc frame having actuating connection and a portion projecting beyond the inking roller, a dog moving with the tiltable frame and engaging the said ratchet wheel, a spring (f )ll trolled frame pirotallv connected. to and do pending from the projecting portion of said tiltable frame, a distributing roller journaled in the latter frame, and a bracket so cured to the said distributing roller frame and projecting laterally therefrom. for the purpose described.

JAMES FRANK PARHA M. Witnesses V. E. Vinson, HARRY RENE Lee. 

